package com.wd.cloud.applet.common.constant.dataverify;

import com.wd.cloud.applet.common.exception.CustomException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Hashtable;

/**
 * 身份证号校验工具
 *
 * @author hjx
 */
public class IdCardUtil {
    /**
     * 中国公民身份证号码最小长度。
     */
    private static final int CHINA_ID_MIN_LENGTH = 15;

    /**
     * 中国公民身份证号码最大长度。
     */
    private static final int CHINA_ID_MAX_LENGTH = 18;

    /**
     * 每位加权因子
     */
    private static final int[] POWER = {
            7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2
    };

    /**
     * 第18位校检码
     */
    private static final String[] VERIFY_CODE = {
            "1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"
    };
    /**
     * 最低年限
     */
    private static final int MIN = 1930;

    public static boolean identityCardVerification(String idStr) {
        String iDCardNo = "";
        //try {
        //判断号码的长度 15位或18位
        if (idStr.length() != CHINA_ID_MIN_LENGTH && idStr.length() != CHINA_ID_MAX_LENGTH) {
            throw new CustomException("身份证号码长度应该为15位或18位");
        }
        if (idStr.length() == CHINA_ID_MAX_LENGTH) {
            iDCardNo = idStr.substring(0, 17);
        } else if (idStr.length() == CHINA_ID_MIN_LENGTH) {
            iDCardNo = idStr.substring(0, 6) + "19" + idStr.substring(6, 15);
        }
        if (!isStrNum(iDCardNo)) {
            throw new CustomException("身份证15位号码都应为数字;18位号码除最后一位外,都应为数字");
        }
        //判断出生年月
        // 年份
        String strYear = iDCardNo.substring(6, 10);
        // 月份
        String strMonth = iDCardNo.substring(10, 12);
        // 月份
        String strDay = iDCardNo.substring(12, 14);
        if (!isStrDate(strYear + "-" + strMonth + "-" + strDay)) {
            throw new CustomException("身份证生日无效");
        }
        GregorianCalendar gc = new GregorianCalendar();
        SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd");
        Date ymd = null;
        try {
            ymd = s.parse(strYear + "-" + strMonth + "-" + strDay);
        } catch (ParseException e) {
            throw new CustomException("身份证日期有误");
        }
        if (ymd == null) {
            throw new CustomException("身份证日期有误");
        }
        if ((gc.get(Calendar.YEAR) - Integer.parseInt(strYear)) > 150 || (gc.getTime().getTime() - ymd.getTime()) < 0) {
            throw new CustomException("身份证生日不在有效范围");
        }
        if (Integer.parseInt(strMonth) > 12 || Integer.parseInt(strMonth) == 0) {
            throw new CustomException("身份证月份无效");
        }
        if (Integer.parseInt(strDay) > 31 || Integer.parseInt(strDay) == 0) {
            throw new CustomException("身份证日期无效");
        }
        //判断地区码
        Hashtable h = getAreaCode();
        if (h.get(iDCardNo.substring(0, 2)) == null) {
            throw new CustomException("身份证地区编码错误");
        }
        //判断最后一位
        int theLastOne = 0;
        for (int i = 0; i < 17; i++) {
            theLastOne = theLastOne + Integer.parseInt(String.valueOf(iDCardNo.charAt(i))) * POWER[i];
        }
        int modValue = theLastOne % 11;
        String strVerifyCode = VERIFY_CODE[modValue];
        iDCardNo = iDCardNo + strVerifyCode;
        if (idStr.length() == CHINA_ID_MAX_LENGTH && !iDCardNo.equals(idStr)) {
            throw new CustomException("身份证无效，不是合法的身份证号码");
        }
        //} catch (Exception e) {
        //    e.printStackTrace();
        //}
        return true;
    }

    /**
     * 地区代码
     *
     * @return Hashtable
     */
    private static Hashtable getAreaCode() {
        Hashtable hashtable = new Hashtable();
        hashtable.put("11", "北京");
        hashtable.put("12", "天津");
        hashtable.put("13", "河北");
        hashtable.put("14", "山西");
        hashtable.put("15", "内蒙古");
        hashtable.put("21", "辽宁");
        hashtable.put("22", "吉林");
        hashtable.put("23", "黑龙江");
        hashtable.put("31", "上海");
        hashtable.put("32", "江苏");
        hashtable.put("33", "浙江");
        hashtable.put("34", "安徽");
        hashtable.put("35", "福建");
        hashtable.put("36", "江西");
        hashtable.put("37", "山东");
        hashtable.put("41", "河南");
        hashtable.put("42", "湖北");
        hashtable.put("43", "湖南");
        hashtable.put("44", "广东");
        hashtable.put("45", "广西");
        hashtable.put("46", "海南");
        hashtable.put("50", "重庆");
        hashtable.put("51", "四川");
        hashtable.put("52", "贵州");
        hashtable.put("53", "云南");
        hashtable.put("54", "西藏");
        hashtable.put("61", "陕西");
        hashtable.put("62", "甘肃");
        hashtable.put("63", "青海");
        hashtable.put("64", "宁夏");
        hashtable.put("65", "新疆");
        hashtable.put("71", "台湾");
        hashtable.put("81", "香港");
        hashtable.put("82", "澳门");
        hashtable.put("91", "国外");
        return hashtable;
    }

    /**
     * 判断字符串是否为数字
     *
     * @param str
     * @return
     */
    private static boolean isStrNum(String str) {
        return RegularConstant.regexCheck(str, "[0-9]*");
    }

    /**
     * 判断字符串是否为日期格式
     *
     * @param strDate
     * @return
     */
    public static boolean isStrDate(String strDate) {
        return RegularConstant.regexCheck(strDate, "^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\\s(((0?[0-9])|([1-2][0-3]))\\:([0-5]?[0-9])((\\s)|(\\:([0-5]?[0-9])))))?$");
    }

}
